Here is the organized list of references grouped by type:

### Articles

- [How to Make a Coffee Fire Log](https://www.instructables.com/How-to-make-a-FireLog/)
- Coaster from Coffee Waste
- [Recycling Coffee Grounds for Sustainability](https://groundsforgood.co.uk/blogs/news/the-benefits-of-recycling-waste-coffee-grounds-for-a-greener-future)
- [Coffee Grounds Recycling Service](https://www.envar.co.uk/coffee-grounds-recycling/)
- [Red-Brick Coffee Shop Design](https://www.azuremagazine.com/article/jpg-coffee-lab-burger-geom-guangzhou-zhujiang/)

### Academic Papers

- [Utilization of Coffee Waste in Bricks (IJETT)](https://ijettjournal.org/assets/year/2016/volume-39/number-4/IJETT-V39P238.pdf)
- [Spent Coffee Grounds as Building Material (PMC)](https://pmc.ncbi.nlm.nih.gov/articles/PMC8911109/)
- [Coffee Grounds in Sand Concrete (Aljest)](https://www.aljest.net/index.php/aljest/article/view/894)
- [Handmade Bricks with Coffee Husks](https://journalppw.com/index.php/jppw/article/download/15737/10112/19328)

### YouTube

- [Coffee Briquettes as Fuel](https://www.youtube.com/watch?v=BrUE1Hs82iQ)
- [DIY Coffee Ground Firestarters](https://www.youtube.com/watch?v=UEdyMyFaU3g)

### Open-Source Designs

- [Broke: Open-Source NFC Tag Project](https://posts.oztamir.com/broke-an-open-source-alternative-to-brick/)
- [filtered] Coffee Waste Design